It doesn't rain twenty-four hours for days on end. Usually, our mornings are sunny and clear - with clouds building up in the early afternoon. Then we may experience an hour or so of rain, quite often torrential with lightning and thunder. Doing laundry and hanging it on the line outside to dry must be done first thing in the day. I had my wash out by 7:30 am today. We prefer to do shopping in the mornings also.
There are many different micro-climates in Costa Rica and I am referring to the climate we experience at our elevation and our part of the country (Atenas).
I made this video last week during a late afternoon storm. It was severe enough to cause flooding in our backyard.